A former Kremlin finance chief, Pavel Borodin, has called for charges to be brought against two Swiss prosecutors, who he accuses of violating confidentiality rules in a corruption investigation involving high-profile Russian politicians.
Borodin, who has been implicated in the investigation, has accused Geneva's state prosecutor, Bernard Bertossa, and an investigating magistrate, Daniel Devaud, of revealing details of the investigation to the media.
Bertossa confirmed that Borodin had called on Switzerland to take action against himself and Devaud, but dismissed the move as "not very serious".
"The aim of [Borodin's] action is to provoke a response. But we are not going to respond. All I'm prepared to say is that it is not a very serious matter."
Borodin is one of several former Kremlin officials, who Bertossa has accused of accepting bribes from two Swiss construction companies, Mabetex and Mercata, in exchange for lucrative contracts to renovate the Kremlin.
Criminal charges were brought against the companies' boss, Beghjet Pacolli, last June.
Mabetex and Mercata are alleged to have paid bribes worth over $60 million (SFr105.6 million) into the Swiss bank accounts of leading Kremlin officials.
swissinfo with agencies